#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox
Local $sRegex = "(?m)(?:\+33|\(\+33\)|0)(?:-| |)([0-9]{1})(?:-| |)([0-9]{2})(?:-| |)([0-9]{2})(?:-| |)([0-9]{2})(?:-| |)([0-9]{2})"
Local $sString = "0123456789" & @CRLF & _
"+33123456789" & @CRLF & _
"(+33)4 98 74 44 44" & @CRLF & _
""
Local $sSubst = "0$1 $2 $3 $4 $5"
Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst)
MsgBox($MB_SYSTEMMODAL, "Result", $sResult)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm